The Prediction Markets

Market comparison

Will GameStop acquire eBay?

2 venues · 1 outcome rows · 1 comparable lines · event identity linked · 0 verified parity · active

1 outcomes · $3.6M reported volume

Observed 59s ago

Recorded venue end date: Jan 1, 2027

Polymarket

Open venue ↗

1 outcomes · $3.2M reported volume

Observed 4m ago

Recorded venue end date: Jan 1, 2027

Check settlement rules before comparing contracts. Matched outcomes may settle differently. These are stored prices; record update times do not certify live quotes. Differences exclude fees and available size.

Known rule differences between venues

  • Kalshi resolves on the acquirer announcing an agreement; Polymarket on an official announcement that the target will be acquired by or merged with the acquirer. A merger framed the other way round can split them.

A shared identity alone does not make a price difference executable.

Yes

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

5.0%

Bid 5.0% · Ask 6.0%

Before Jan 1, 2027

Open Kalshi ↗

Polymarket

6.5%

Bid 6.0% · Ask 7.0%

Yes

Open Polymarket ↗

Price difference 1.5 pp

Prices are shown as percentages of a $1 payout. “pp” means percentage points. A dash means data is unavailable.